Router machine



Nov. 21, 1939; A. A. SHINN ET AL ROUTER MACHINE Filed Feb. 26, 1958 I s Sheets-Sheet 1 J02? fl. Erz'csonJ ATTORNEYS Nov. 21, 1939. A. A. SHlNN ET AL ROUTER MACHINE Filed Feb. 26, 1938 3 Sheets-Sheet 2 ATTORNEYS I Nov. 21, 1939. A. A. SHINN ETAL 2,181,027

ROUTER MACHINE Filed Feb. 26, 1935 s Sheets-Sheet 3 /4./4.45/zz'm z 2022 AErrzasozzfi ATTORNEYS Patented Nov. 21, 1939 UNITED STATES ROUTER mcmm: 1

Alice A. Shinn and Don A. Ericson, Oklahoma City, Okla Application February 26, 1938, Serial No. 192,822

6 Claims. (01; -15) The invention relates to a routing machine and more especially to a stand and work support carried for automatic routing machines;

The primary object of the invention is the provision of a machine of this character, wherein the stand is constructed for a movable carriage on which is assembled a work support movable relative to the carriage, the carriage and the support in their construction and assembly being novel so that work to be acted upon for the routing operation of the machine can be conveniently handled during the automatic routing op-,- eration.

Another object of the invention is the-provision of a machine of this character, wherein the carriage and the work support is susceptible of a wide range of adjustment for the proper handling of the work during the routing operation of the machine.

A further object of the invention is the provision of a machine of this character, wherein the construction thereof is novel in its entirety and assures the easy and convenient handling of the work for the automatic routing operation.

A further object of the invention is the provision of a machine of this character, which is simple in its construction, thoroughly reliable and efficient in operation, susceptible of the proper handling of the work for varying the extent of routing thereof in the working of the machine and inexpensive to manufacture.

With these and other objects in View, the in vention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings, which disclose the Figure 5 is a fragmentary sectional view taken I on the line 5-5 of Figure 6 looking in the direction of the arrows.

Figure 6 is a side elevation. Figure '7 is a top plan view of said head 0 bracket.

Figure 8 is an edge elevation partly in section of the slide associated with the head or bracket.

' noted generally at II.

Figure 9 is a vertical sectional view through the router motor-carrying plate.

Figure 10- is a fragmentary sectional viewon the-line l0-"l0 of Figure 2 looking in the direction of the arrows.

Figure 11 is a sectional view on the line Hl l of Figure 1.

Similar reference characters indicate corresponding parts throughout the several views in the drawings. r

Referring to the drawings in detail, the machine comprises a stand'A having at its top a flat horizontallydispos'ed bed l0 being of the required length and width and has provided medially thereof a cutaway portion or recess de- The cutaway portion or recess II is carried transversely of thebed ll! of the stand A and rearwardly in confronting relation thereto isa head or bracket involving a perpendicular frontal plate l2 and a horizontally rearwardly extending shelf I3, respectively, these being joined in any suitable manner and the shelf is sustained rigidby braces I4 diagonally disposed and associated with the stand A.

On the shelf l3 are spaced shaft hangers or bearings I5 in which is journaled a horizontally disposed driven shaft [6 having fixed thereto a belt wheel or pulley I! over which is trained a driving belt l8 being also trained over a 'belt wheel orpulley I9 on a drive shaft 2!! of an electric motorZl which is stationarily carried upon the shelf l3.

The shaft '16 next to the frontal plate l2 has adjustablyfitted therewith an eccentric 22 operating a throwarm 23 pivoted at 24 to a slide 25. The slide is movably fitted in spaced perpendicularly disposed guides 26; one being susceptible of taking up wear and also relieving side thrust to the saidslide 25 inits operation. The slide is provided with an opening-21 for exposing therethrough a'portion of an electric driver 28 for a router tool, a part thereof beingindicated at 29. This 'driveris in the form ofan electric motor, the frontal plate l2 being provided'with a clearance or opening 28' through which projects the driver and thetool heretofore mentioned.

The slide 25 carries a plate-like adjustable saddle part 30 having the saddle 3i and opening 32, respectively, the'la'tter being in register with the opening 2'! and the saddle 31 has fitted therein. the driver. 28 being held fixed in said saddle by an adjustable clamp 33. The part 3!! at its upper and lower ends has provided therein slots 34, these opening through said ends and accommodate guide pins '35 fixed-win the slide 25 so that the part 30 can be guided for vertical relative movement with respect to the slide 25 and such part is held in its adjusted position by fasteners 36 passed through the same and engaged in the slide 25. This part 30 through its adjustment regulates the driver 28 as to its position with respect to the slide 25, which is operated through the eccentric 22 and arm 23, respectively. 3

The motor 2| also through the belt l8 engaging the pulley wheel 31 operates a blower pump 38 from which leads an air tube 39, the latter being suitably trained through the frontal plate l2 for directing air under pressure'to the.

work operated upon by the machine for the cleaning of the routed area of a piece of work during the working of the machine, this being conventional.

At opposite sides of the recess or cutaway portion II and elevated above the plane of the bed It are tracks 40 being crosswise or transversely of the said bed I0 and on which travel bearing ball equipped runners 4| of a carriage 42 fitting within the cutaway portion or recess H for movement toward and away from the head or bracket, that is, the frontal platel2 thereof. This carriage 42 supports a track 43 which is disposed longitudinally of the stand A and in which is shiftably fitted a longitudinally arranged work holder 44 with relation to the said stand, which-has rising therefrom a work rest rail or fence 45 being longitudinally thereof while at opposite ends of this support 44 are shoes 46 having bearing ball-like traction 41 with the top face of the bed l0 and this support 44 presents the work to the router tool 29, the depth of the routing action of the latter being controllable through the shifting of the carriage 42 while the length of the routing operation' is controllable through the shifting of the support 44 when the work is thereon.

The limit of throw of the work support 44 with relation to the 'bed ID of the stand A can be had in anywell-known manner through the use of suitable stops (not shown) and adjustably carried by the same. I

Associated with the fence 45 on the support 44 and clearly visible by an operator ofthe machine when looking downwardly on said support is a scale beam 48 and cooperating with the scale markings of this beam is an indicator or pointer 49 carried by a vertically movable brake arm 50 hinged at 5| to the carriage 42 centrally of its longitudinal track 43 ,the arm or lever 51] being provided with a braking face 52-for contact with the support 44 and holding the latter against movement on operation of the arm or lever 50 in one direction. This arm or lever 5|] is manually controlled or actuated. 1

The carriage 42 is manually shiftable and correspondingly the support 44 for the workis manually shiftable. This support 44 operates longitudinally of the bed ll! of the stand; A while the carriage 42 operates transversely of said bed, having'ball bearing equipment 52' associated with the track 43 and support 44. The track and support are interfitted with each other as at 53.

The driver 28 rotatably actuates the tool 29 while the slide 25 is reciprocated under the action of the eccentric 22 and its arm 23 pivoted at 24 to said slide.

The bearings I5 are fixed to the shelf I3 in any suitable manner and also the motor 2| is stationarily supported thereon as well as the blower or pump '38. The part 3|] having the saddle 3| allows for adjustment of the driver 28 with relation'to the slide 25.

The motor 2| and the driver 28, which is in the form of a motor, are stopped and started in a conventional manner, being independently controlled through hand switches (not shown) conveniently arranged in the machine.

What is claimed is:

1. In a machine of the character described, a movably supported slide having an opening therein, a saddle part having an opening for registering with the opening in the slide and also provided with a saddle beneath said opening, said saddle part having slots opening through opposite extremities thereof, guides on said slide for engaging said slots and allowing movement of the saddle part relative to said slide,and means engaging the saddle part and slide for holding the same against relative movements.

2. In a machine of the character described, a movably supported slide having an opening therein, a saddle part having an opening for registering with the opening in the slide and also provided with a saddle beneath said opening, said saddle part having slots opening through opposite extremities thereof, guides on said slide for engaging said slots and allowing movement of the saddle part relative to said slide, means engaging the saddle part and slide for holding the same against relative movements, a power driven tool fitting said saddle on the saddle part, and a loop-like clamp bridging the power driven tool and engaging the saddle for releasably clamping the said tool seated in the latter.

3. In a machine'of the character described, a movably supported slide having an opening therein, a saddle part having an opening for registering with the opening in the slide and also provided with a saddle beneath said opening, said saddle part having slots opening through opposite extremities thereof, guides on said slide for engaging said slots and allowing movement of the saddle part relative to said slide, means engaging the saddle part and slide for holding the same against relative movements, a power driven tool fitting said saddle on the saddle part, a looplike clamp bridging the power driven tool and engaging the saddle for releasably clamping the said tool seated in the later, and means having connection with the slide for imparting movement thereto.

4. In a machine of the character described, a movably supported slide having an opening therein, a saddle part having an opening for registering with the opening in the slide and also provided with a saddle beneath said opening, said saddle part having slots opening through opposite extremities thereof, guides on said slide for engaging said slots and allowing movement of the saddle part relative to said slide, means engaging the saddle part and slide for holding the same against relative movements, a power driven tool fitting said saddle on the saddle part, a loop-like clamp bridging the'power driven tool and engaging the saddle for releasably clamping the said tool seated in the later, means having connection with the slide for imparting movement thereto, and means guiding the said slide in its movements.

5. In a machine of the character described, a stand having a flat horizontally disposed bed provided with a cutaway portion transversely thereof, tracks at opposite sides of the cutaway portion and elevated'above the plane of the bed,

bearing ball equipped runners upon said tracks, a carriage supported by said runners and having a track disposed longitudinally of the bed, a scale beam movably associated with said lastnamed track and having a fence, and an indicator on said scale beam. I

6. In a machine of the character described, a stand having a flat horizontally disposed bed provided with a cutaway portion transversely thereof, tracks at opposite sides of the cutaway portion and elevated above the plane of the bed,

bearing ball equipped runners upon said tracks, a carriage supported by said runners and having a track disposed longitudinally of the bed, a scale beam movably associated with said last-named track and having a fence, an indicator on said- 5 scale beam, and a brake associated with the said 

